Appendix C

Table 10. Early vs Late Diet Discontinuation Comparison on Various Outcomes

Outcome

N

M d

95% Confidence Interval

IQ

64

0.6033

0.4693 to 0.7372

FSIQ

38

0.5709

0.3748 to 0.7670

VIQ

13

0.6774

0.4942 to 0.8607

PIQ

13

0.5923

0.2640 to 0.9206

Note. N=number of effect sizes. A
positive effect size reflects that PKU individuals who terminated diet prior to age 8 years exhibited a poorer outcome with regard to intelligence than those PKU individuals who terminated diet after age 8 years.